Ratings may include incentivized customer reviews.
What Customers Are Saying
The product is generally effective at filling gaps and holes, especially in larger openings, and has fire-retardant properties that allow it to expand significantly. However, some users reported issues with controlling the nozzle, the foam continuing to expand after application, and the product not being approved for certain fire-rated applications. The product can also be messy and difficult to clean up. Overall, the product is useful for many home improvement tasks, but users should exercise caution with the amount used and ensure it is appropriate for their specific application.
Customer review summary generated by AI, including incentivized reviews.Use fire block foam insulation around electrical
Would RecommendPerfect for what I needed once I found out it was what I needed 😊
Verified Purchaser
Not limited size
Would Not RecommendI wonder why the product doesn't list its size. tried to compare prices, can't find the size, the photo doesn't clearly show the size of the product. choose something else.
Easy to use
Would RecommendEasy to use, pressure needs to build up when you start to spray
Verified Purchaser
3M FB-Foam 0.039-in H Fire Block Foam
Would RecommendTypical fire foam block - dont get on your hand! hard to wash off
Verified PurchaserVerified Pro
Fire foam
Good product for required fire blocking. Small size makes it easier to apply in tight spaces
Verified Purchaser
Filled in areas in my attic.
Would RecommendIt was easy to apply. The can goes pretty quick.
Verified Purchaser
FIRE BLOCK
Would RecommendThis foam did an excellent job to fill 4 holes that will help with condensation and dust.
Verified Purchaser
Absolute Mess
Would Not RecommendHas to be the one of the worst, if not the worst products I've ever purchased from Lowe's. Bought two cannisters - the first got clogged within 30 seconds and I'm taking back, while the second was an adventure to use. Never stopped coming out, kept falling on everything but the area I was attempting to seal, is a mess to cleanup and generally worked at a <50% hit rate in coverage - it's all over everything but where I need it in too many places! My suggestion is either use the caulk for narrow ...
Decent, but plan on single use
Would RecommendThe product worked well enough, but the straw clogged up and was a pain to clear out. If you are planning on single use, it should do the trick but if you need to keep stopping and restarting you need to go to something with a pro gun.
Verified Purchaser
Hello, thank you for taking the time to leave your review. Your experience is not what we would expect, and we would appreciate the opportunity to di...